cryogen

cry·o·gen

A freezing substance or mixture used to produce very low temperatures.

cryogen

[krī′əjən]

Etymology: Gk, kryos + genein, to produce

1 a chemical that induces freezing, used to destroy diseased tissue without injury to adjacent structures. Cell death is caused by dehydration after cell membranes rupture.

2 (in magnetic resonance imaging

Etymology: MRI

) a chemical used to cool the MRI electromagnet so that the magnet remains superconducting and higher magnified strengths can be achieved. Kinds of cryogens include carbon dioxide,liquid nitrogen, liquid helium, and nitrous oxide. cryogenic,adj.

cryogen

A cooling agent—e.g., liquid helium or liquid nitrogen—used to reduce the temperature of magnet coil windings in a superconducting magnet.

cry·o·gen

(krī'ō-jen)

A substance used to obtain low temperatures.

[G. kryos, cold, + -gen]

Cryogen

A substance with a very low boiling point, such as liquid nitrogen, used in cryotherapy treatment.

for their NMR spectrometer line we are pleased to have developed a technology with them that overcomes some of the more important aspects of NMR siting -- the availability and handling of cryogens," said Steve McQuillan, managing director, Oxford Instruments Superconductivity.

BOC will also provide the liquid helium that Magnetic Resonance Imaging (MRI) systems utilize to cool their superconducting magnets as well as liquid nitrogen and cryogen filling services to meet the MRI operators' total requirements.

The Taylor-Wharton product line includes dewars for storing and dispensing liquid cryogens, as well as LAB Series freezers with Auto-Tend Control Systems that maintain liquid nitrogen levels automatically.

NYSE:PX), the largest industrial gases company in the Americas, have announced an expansion to their current five-year agreement to include magnetic resonance imaging (MRI) cryogens (liquid helium and liquid nitrogen) and related services.

Having the largest installed customer base of cryosurgical instrumentation in the United States, the Company felt the need to advise physicians of the need for caution when using the type of instrumentation that utilizes high pressure gases as cryogens, and to reassure its customers and potential customers of the safety attributes of low pressure cryosurgical systems.

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